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Specifications
Normal temperature Frequency Tolerance:
±10ppm
Frequency Stability:
±30ppm
Operating Temperature:
-40℃~+85℃
Load Capacitance:
18pF
Frequency:
25MHz
Mfr. Part #:
7E25000E18UCG
Package:
SMD2520-4P
Key Attributes
Model Number:
7E25000E18UCG
Product Description
Product Overview
The QUARTZ CRYSTAL UNIT SERIES 7E is a seam-sealed ceramic surface mount package designed for various electronic applications. It offers a compact 2.5x2.0mm footprint and is available in a 25.000MHz frequency with a load capacitance of 18.0 PF and a frequency tolerance of 10 PPM. This series is RoHS, REACH, and HF compliant, ensuring environmental responsibility.
Product Attributes
- Brand: SJK (implied by P N/ SJK)
- Origin: Shenzhen, China (3 C 12 12041206 )
- Material: Ceramic
- Certifications: RoHS, REACH, HF
- Minimum Packaging: 3000pcs/reel
- Moisture Sensitivity Level: Level 1
Technical Specifications
| Parameter | Specification |
| Output Frequency | 25.000000MHz |
| Mode | AT/Fundamental Frequency |
| Frequency Tolerance (at 25C) | 10 ppm max |
| Load Capacitance (CL) | 18.0 PF |
| Frequency Stability Over Operating Temperature | 30ppm max |
| Operating Temperature Range | -40 C to +85 C |
| Storage Temperature Range | -40 C to +125 C |
| Shunt Capacitance (C0) | 3.0 PF Max |
| Driver Level (Typical) | 10W |
| Equivalent Series Resistance (ESR) | 60 Max |
| Aging @25C (1st year Max) | 3ppm/year |
| Testing Conditions (Ambient Temperature) | 255 |
| Testing Conditions (Relative Humidity) | 40%~70% |
| Reliability Test - Drop | Frequency change 5ppm, Resistance change 15% after 3 drops from 55cm |
| Reliability Test - Vibration | Frequency change 5ppm, Resistance change 15% (10~55Hz, 1.5mm amplitude, 2 hours per axis) |
| Reliability Test - Thermal Shock | Frequency change 5ppm, Resistance change 15% after 25 cycles (-40C to +85C) |
| Reliability Test - Hermeticity | Leakage rate 110-9Pa.m3/s (Helium pressure 50.5Kg/cm2 for 120 min) |
| Reliability Test - Resistance to Soldering Heat | Frequency change 5ppm, Resistance change 15% (260C10C for 155 sec) |
| Reliability Test - Tinning Test | Solder coverage 90% on pins (260C10C for 31 sec) |
| Reliability Test - High Temp/High Humidity | Frequency change 5ppm, Resistance change 15% after 240 hours at 60C2C, 90%~95% RH |
| Reliability Test - High Temperature Test | Frequency change 5ppm, Resistance change 15% after 240 hours at 85C2C |
| Reliability Test - Low Temperature Test | Frequency change 5ppm, Resistance change 15% after 240 hours at -40C2C |
| Reliability Test - Life Test | Frequency change 5ppm, Resistance change 15% after 1000 hours at 5V, 25 |
2304131800_SJK-7E25000E18UCG_C524668.pdf
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